Analysis of flow Fields and Research on Resistance Characteristic of Inertial Stage of Marine Moisture Separator
Wang Xiaohua(1),Sun Haiou(2),He Zhongyi(1)
(1 Harbin Institute of Technology, Harbin, China, 150090) (2 Harbin Engineering University, Harbin, China, 150090)

Abstract: By using the second order full expansion Euler-Taylor- Galerkin (ETG) finite element method, cooperated with the technology of large eddy simulation (LES), flow fields with different Reynold numbers in the inertial stage of marine moisture separator were simulated. The Smagorinsky subsgrid mod el constant was deduced by comparing the computational result of resistance coefficient at one of the Reynold numbers with that of the physical experiment. It is proved that the calculated constant can also be used to calculate the flow fields of the model with other Reynold numbers. As the computational results show that abundant eddy series and the time processes of such eddies were captured by using the ETG finite element method cooperated the technology LES. Based on the analysis of flow fields, the energy losing rates on each point in the model wit h the same Reynold numbers were calculated. The energy loses were proved to center in the regions that eddies of large scale taken into place. 
Keywords: Euler-Taylor-Galerkin (ETG) finite element method, large eddy simulation, moisture separator, inertial stage, energy losing rate.